Customer Reviews of (COOLERMASTER RR-920-N520-GP)

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SummaryI bought this cooler to replace a Coolermaster GeminS524 Top Down Cooler in an HTPC NMedia 2000b case. The Gemin S524 could not keep my OC'd Phenom II 965 below 62 degrees c 4.03Ghz(1.4125v).I removed both 92mm fans that came with this cooler and replaced them with Coolermaster Blademaster 92mm PWM fans. I priced matched the fans down to $5.x each. This N520 cooler can actually keep my Phenom around 57-58 degrees under full load which is 5 degrees cooler then the Gemin S524. The fans do spin up to ~2800rpm's 100% to obtain this temperatures. At idle I am seeing a steady 43 degrees with both fans c 45% (~1800rpm) which is what the stock fans spin at that come with this kit. I would say that this cooler is at it's limits with a 125watt tdp cpu.

SummaryWith an intake fan on the side of the case I needed a lower profile fan, but still wanted it to be directional.

The fan has lower height than most that have a similar design and still performs well.

Using the Y-cable and connecting both fans to one connector caused an rpm flag upon boot, rpm would dip below acceptable default levels randomly. Easily remedied by connecting to separate connectors or disabling the RPM monitor as it's obviously caused by 2 fans being connected at once.

*NOTE* Requires common sense and slight skill to install, which may be a problem for some judging by alot of the reviews

SummaryThis is an update to an already great review. I just wanted to clarify that I've now bought a second one and installed it on a clients Zosma overclocked 400 mhz with Artic Silver 5 in a Raven Rv03 and the temps are simply the best I've ever seen!

SummaryI overclocked a AMD 955 BE. Im using a HAF 912 case with 1x 200mm fan, and 4x 120mm fans, so more than sufficient airflow.

Installation was easy, but better to use with two people because you have to flip the motherboard but you want the CPU to contact the Heatsink properly and not create air bubbles. Used the thermal paste that came with the cooler, i used a pea size method (recommended method).

At 4.0ghz (1.45v Vcore 1.35v cpu-nb) i had a 33 degree idle and 51 degree load. At 4.2ghz and 1.520v it heated to high to quickly so it did not suffice. Its generally not good to go over 49degrees with amd 9x5 (65 max) series for performance reasons but 51 i guess is fine, only under constant load will it do that at %100

Its definitely a quality and heavy product and with 2 fans, a copper base its a great price. However there are coolers that really outperform this one, i read that someone managed to OC a AMD 955 j 4.0ghz with 46 degree load, but then again idk how much his CPU-NB was OC, because mine is pretty high at 2.8ghz. If your looking to spend about $40 i would recommend this cooler for sure.

Perfect temps in a warm (24degree room) were achieved at 3.8ghz j 1.400v vcore and 2.8ghz 1.35v CPU-NB. My CPU-NB is usually 1.20v stock so its a big difference and usually 2.0ghz. More performance is seen with CPU-NB increases so in conclusion, im very happy with my CPU cooler its only holding me back 200mhz (my CPU is not stable at 4.3GHZ) and that extra 200mhz on 3Dmark11 was a overall 20 point increase only. Most chips wont offer such a high OC like mine, i got lucky, so i really would suggest this a very good CPU cooler!

Noise - i turned off cool and quiet and turned the fan to %100 all the time because its not that bad, when i turn my fans to silent i can hear the cpu cooler slightly so it is quiet, and the fans definetly push air, and it lined up PERFECTLY with my rear exhaust fan so it really helped push more air out.

*i dropped a extra 5 degrees by tightening the bolts of the CPU cooler by using a really long screw driver. I recommend to use a long screwdriver (i used a 9") to make sure its tightened very well, you can feel when its torqued well. I know it sounds silly but with a generic sized screwdriver you can tighten it as hard as you can but a longer one will help you get more out of this CPU cooler!

Short screw drivers will make you feel like you did enough but it won't be!!

SummaryWas setting it up and screwed in the plate normally clockwise and halfway in would get stuck. Screws are very small so are easy to strip. Had to toss the whole unit after screws broke off inside. Partially my fault but I have never had to screw something in the opposite way and it started going in clockwise so assumed it was just getting stuck.

SummaryDecent price when price matched. The height was perfect for my case which had height constraint issues. Compatible with most socket types, very quiet dual fans and also came with thermal paste tube. Design is also very nice

SummaryI chose this CPU Cooler for a friend who has an Azza 1000 to cool his AMD 1055T. With the side case fan on the azza I needed a cooler that wasn't too tall, but I didn't want to sacrifice too much performance either. This cooler fit the bill with it's push-pull fan configuration. I conservatively set his clock speed to 3.8GHZ, if it were mine I would have attempted higher but I needed it to be 110% stable for him. Highly recommended!

ConsInstallation is a bit hard, It's a 2 person job to attack the heatsink and backplate.

SummaryI got this heatsink so I could push some more mhz out of my overclocked Phenom II 720 BE and it does the job, I'm now significantly overclocked and my idle and load temps are lower than when my CPU was at stock frequency with stock cooler.

Only issue is installation. you need 2 people to get the heatsink on and screwed to the backplate while holding your mobo.

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